<!--edu_1_3_2.html-->
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<Title>JavaScript的简单运用</title>
</head>
<body>
<script type="text/javascript">
document.write("Hello,World!")  //直接在浏览器视窗显示
 alert("Hello,World!")          //开启对话视窗显示
</script>
</body>
</html>